tetano
Editor, Senior Moderator
Infection
. 2020 Jul 28.
doi: 10.1007/s15010-020-01485-6. Online ahead of print.
Absent immune response to SARS-CoV-2 in a 3-month recurrence of coronavirus disease 2019 (COVID-19) case
Guosheng Gao[SUP] 1 2 [/SUP], Zhe Zhu[SUP] 2 3 [/SUP], Lingyan Fan[SUP] 2 4 [/SUP], Shuyuan Ye[SUP] 1 2 [/SUP], Zuoan Huang[SUP] 2 5 [/SUP], Qiaoyun Shi[SUP] 2 5 [/SUP], Yedan Sun[SUP] 6 [/SUP], Qifa Song[SUP] 7 [/SUP]
Affiliations
Abstract
Background: The viral persistence in patients with Coronavirus Disease 2019 (COVID-19) remains to be investigated.
Methods: We investigated the viral loads, therapies, clinical features, and immune responses in a 70-year patient tested positive for SARS-CoV-2 for 3 months.
Findings: The patient exhibited the highest prevalence of abnormal indices of clinical features and immune responses at the first admission, including fever (38.3 ℃), decreased lymphocytes (0.83 ? 10[SUP]9[/SUP]/L) and serum potassium (3.1 mmol/L), as well as elevated serum creatinine (115 ?mol/L), urea (8.6 mmol/L), and C-reactive protein (80 mg/L). By contrast, at the second and the third admission, these indices were all normal. Through three admissions, IL-2 increased from 0.14 pg/mL, 0.69 pg/mL, to 0.91 pg/mL, while IL-6 decreased from 11.78 pg/mL, 1.52 pg/mL, to 0.69 pg/mL, so did IL-10 from 5.13 pg/mL, 1.85 pg/mL, to 1.75 pg/mL. The steady declining trend was also found in TNF-α (1.49, 1.15, and 0.85 pg/mL) and IFN-γ (0.64, 0.42, and 0.27 pg/mL). The threshold cycle values of RT-PCR were 26.1, 30.5, and 23.5 for ORFlab gene, and 26.2, 30.6, and 22.7 for N gene, showing the patient had higher viral loads at the first and the third admission than during the middle term of the disease. The patient also showed substantially improved acute exudative lesions on the chest CT scanning images.
Conclusions: The patient displayed declining immune responses in spite of the viral shedding for 3 months. We inferred the declining immune responses might result from the segregation of the virus from the immune system.
Keywords: Coronavirus disease 2019 (COVID-19); Immune response; Long-term viral shedding; Novel coronavirus (SARS-CoV-2); Recurrence.
. 2020 Jul 28.
doi: 10.1007/s15010-020-01485-6. Online ahead of print.
Absent immune response to SARS-CoV-2 in a 3-month recurrence of coronavirus disease 2019 (COVID-19) case
Guosheng Gao[SUP] 1 2 [/SUP], Zhe Zhu[SUP] 2 3 [/SUP], Lingyan Fan[SUP] 2 4 [/SUP], Shuyuan Ye[SUP] 1 2 [/SUP], Zuoan Huang[SUP] 2 5 [/SUP], Qiaoyun Shi[SUP] 2 5 [/SUP], Yedan Sun[SUP] 6 [/SUP], Qifa Song[SUP] 7 [/SUP]
Affiliations
- PMID: 32725596
- DOI: 10.1007/s15010-020-01485-6
Abstract
Background: The viral persistence in patients with Coronavirus Disease 2019 (COVID-19) remains to be investigated.
Methods: We investigated the viral loads, therapies, clinical features, and immune responses in a 70-year patient tested positive for SARS-CoV-2 for 3 months.
Findings: The patient exhibited the highest prevalence of abnormal indices of clinical features and immune responses at the first admission, including fever (38.3 ℃), decreased lymphocytes (0.83 ? 10[SUP]9[/SUP]/L) and serum potassium (3.1 mmol/L), as well as elevated serum creatinine (115 ?mol/L), urea (8.6 mmol/L), and C-reactive protein (80 mg/L). By contrast, at the second and the third admission, these indices were all normal. Through three admissions, IL-2 increased from 0.14 pg/mL, 0.69 pg/mL, to 0.91 pg/mL, while IL-6 decreased from 11.78 pg/mL, 1.52 pg/mL, to 0.69 pg/mL, so did IL-10 from 5.13 pg/mL, 1.85 pg/mL, to 1.75 pg/mL. The steady declining trend was also found in TNF-α (1.49, 1.15, and 0.85 pg/mL) and IFN-γ (0.64, 0.42, and 0.27 pg/mL). The threshold cycle values of RT-PCR were 26.1, 30.5, and 23.5 for ORFlab gene, and 26.2, 30.6, and 22.7 for N gene, showing the patient had higher viral loads at the first and the third admission than during the middle term of the disease. The patient also showed substantially improved acute exudative lesions on the chest CT scanning images.
Conclusions: The patient displayed declining immune responses in spite of the viral shedding for 3 months. We inferred the declining immune responses might result from the segregation of the virus from the immune system.
Keywords: Coronavirus disease 2019 (COVID-19); Immune response; Long-term viral shedding; Novel coronavirus (SARS-CoV-2); Recurrence.